11 HVAC Service Contractors in Johns Island, SC
Top-Rated HVAC Service Contractors in Johns Island
Carney & Son 72 Degrees
“Every sampled review awards 5 stars, with 4 of 5 reviewers naming specific technicians, Jacob, Daniel, Ryan, and Clarice consistently recognized for patience…”
AGL Heating & Air
“Eight reviewers describe same-day service response, with five specifically naming technicians who arrived promptly or provided on-time appointments. All eight…”
All HVAC Service Contractors (11 total)
5 Star Charleston Johns Island
“Fourteen reviewers specifically mention technicians by name, with Christian and Zach receiving the most…”
James Island Heating & Air, LLC
“All 28 reviewers awarded 5 stars except one 1-star review, which cited communication gaps rather than…”
American Mechanical Services
“All five-star reviewers describe emergency or urgent situations, with multiple accounts noting same-day or…”
Triad Mechanical Contractors
“Four of 14 reviewers awarded 1-star ratings, citing unresponsive service, professionalism breakdowns, and…”
Southern Air Solutions
“All three reviews award 5 stars, with customers specifically naming technician Philip for his technical…”
Atlantic Boat ACR
“Three of five reviewers awarded five stars, with positive feedback emphasizing quick repairs and helpful…”
DE-Minimus HVAC/Refrigeration
“The single 5-star review specifically praises fast response time, diagnostic skill, having required parts on…”
HVAC Service Costs in Johns Island
General HVAC service pricing across maintenance, repair, and installation in Johns Island.
| Service | Low | Average | High |
|---|---|---|---|
Service call / diagnostic | $75 | $120 | $200 |
Routine tune-up (single system) | $70 | $125 | $200 |
Standard repair (avg) | $150 | $600 | $1,200 |
Major repair (compressor, heat exchanger) | $1,500 | $2,500 | $3,500 |
New system installation (mid-range) | $6,500 | $10,500 | $14,000 |
Full HVAC replacement AC + furnace combined | $11,590 | $13,430 | $14,100 |
Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Service in Johns Island, SC: What to Expect
Charleston residents know the Lowcountry summer does not forgive weak cooling systems. With temperatures climbing to 89 F and humidity lingering near 80%, air conditioners run almost continuously from May through September, fighting both sensible heat and the invisible load that moisture places on equipment. Johns Island sits within the Charleston metro area, where seven contractors serve homeowners with an average 4.7 rating from roughly 2,300 verified reviews. The combination of coastal humidity, salt-laden air, and mild winters that rarely require heating means HVAC Service in Johns Island revolves around keeping cooling systems efficient and moisture-related corrosion at bay.
Service costs in the area follow predictable lines. A standard diagnostic visit runs $75 to $200, while routine tune-ups for a single system typically cost $70 to $200. More extensive repairs average $150 to $1,200 depending on what the system demands. Every contractor in South Carolina must hold a Mechanical Contractor license from the state Licensing Board before legally working on heating and cooling equipment, which provides a baseline of accountability for homeowners.
Customer feedback points to genuine strengths among local crews. Both AGL Heating & Air and Passion Heating and Air maintain all-five-star profiles, with many reviewers noting how technicians showed up to solve problems that previous contractors left unfinished. Several customers specifically mention crew members by name, praising their professionalism and clean work habits during installations. Responsiveness appears as a recurring theme across multiple reviews, suggesting that turnaround speed matters in this market just as much as technical skill.